(19)
(11)
EP 1 124 757 A1
(12)
(43)
Date of publication:
22.08.2001
Bulletin 2001/34
(21)
Application number:
99942479.9
(22)
Date of filing:
26.08.1999
(51)
International Patent Classification (IPC)
7
:
C01D
5/00
,
C01D
5/08
(86)
International application number:
PCT/US9919/401
(87)
International publication number:
WO 0015/554
(
23.03.2000
Gazette 2000/12)
(84)
Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
(30)
Priority:
14.09.1998
US 152103
(71)
Applicant:
DEAD SEA WORKS LTD
84100 Beer Sheva (IL)
(72)
Inventors:
HOLDENGRABER, Curt
Kiryat Tivon 36081 (IL)
LAMPERT, Shalom
Maalot 21520 (IL)
(74)
Representative:
Richebourg, Michel François et al
Cabinet Michel Richebourg,"Le Clos du Golf",69, rue Saint-Simon
42000 Saint Etienne
42000 Saint Etienne (FR)
(54)
PROCESS FOR PRODUCING POTASSIUM SULFATE FROM POTASH AND SODIUM SULFATE